Convert Kilogram square metres to Gram square metres
Convert Kilogram square metres (kg·m²) to Gram square metres (g·m²) instantly and accurately.
Conversion Formula
g·m² = kg·m² × 1000
About Kilogram square metres
The kilogram square metre (kg·m²) is the SI coherent derived unit of moment of inertia. It defines the rotational analogue of mass in Newton's second law: τ = Iα (torque in N·m, angular acceleration in rad/s²). A solid disc of 10 kg and 0.5 m radius has I = 1.25 kg·m². Electric motor rotors: 0.001-10 kg·m². Wind turbine rotors: 10⁶-10⁸ kg·m². 1 kg·m² = 10 000 kg·cm² ≈0.7376 slug·ft².
About Gram square metres
The gram square metre (g·m²) equals 10⁻³ kg·m², used for very light rotors with large radii. Lightweight UAV propeller blades, model aircraft propellers, and thin foam circular discs are characterised in g·m²; it bridges g·cm² and kg·m² in laboratory-scale spinning experiments. 1 g·m² = 10⁻³ kg·m² = 10 kg·cm² = 10 000 g·cm².
Quick Reference Table
| Kilogram square metres (kg·m²) | Gram square metres (g·m²) |
|---|---|
| 1 kg·m² | 1000 g·m² |
| 2 kg·m² | 2000 g·m² |
| 5 kg·m² | 5000 g·m² |
| 10 kg·m² | 10000 g·m² |
| 25 kg·m² | 25000 g·m² |
| 50 kg·m² | 50000 g·m² |
| 100 kg·m² | 100000 g·m² |